Question about 1996 Lexus ES 300

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1996 LEXUS ES300 3.0L

Need to see how the vacum lines are connected to the Intake manifold.
They were removed when replacing the Valve cover gaskets.
Thank you,
Arthur

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I have prolem with my car p0753

Posted on Nov 02, 2009

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SHO. What will I have to remove to replace spark plugs and valve cover gaskets?


If it is a 6 cylinder engine you will probably need to remove the intake manifold to replace the rear valve cover gasket. If that's the case the intake manifold also has two hidden screws in the rear against the firewall as well as an EGR exhaust line that must be removed before the intake manifold will come off. I highly recommend you buy a haynes repair manual for your make/model and a flexible mirror-on-a-stick to use for dis-assembly. The spark plugs can be removed after the valve covers are removed (if the valve cover is leaking you will likely have oil pooled around the plugs anyway).

Dec 28, 2015 | 1998 Ford Taurus

Tip

How to remove/replace the Valve Cover Gaskets on a New Beetle car?


Replace the valve cover gasket if the valve cover gaskets are leaking or if they're worn. The procedure is as follows:--
1) First of all let the motor cool down if the car was recently driven. Then remove the air intake boot.The air intake boot ios attached to the engine's throttle body.
2) Carefully disconnect the throttle cable , hoses and electrical connectors located on the upper intake manifold.
3) Then disconnect the hard pipe that is connected to the EGR (exhaust gas recirculation) valve.
4) The EGR valve is located beneath the upper intake manifold.
5) Then remove the bolts from both the upper intake manifold and the manifold support bracket.
6) Now the upper intake main fold and lower intake manifold both have got loose as you removed the nut.
7) After that remove the upper intake manifold from the lower intake manifold. Carefully place clean rags over the intake runners to prevent anything from falling into the intake system.
8) Then you will have to disconnect the crank case breather valve on the valve cover.
9) Then remove the bolts from the valve cover and remove the reinforcing straps.
10) Then remove the camshaft belt cover and the dust shield from the back of the camshaft sprocket.
11) Now carefully remove the valve cover. Properly clean the old gasket material with gasket remover.
12) You can install a new gasket in the reverse procedure of removal.


This will help. good luck.

on Mar 09, 2010 | Volkswagen Beetle Cars & Trucks

1 Answer

Do I have to take the top in take manafold off to tighten the lower intake manafold on a 1993 buick regal 3.8 L engine?


Yes you do, the following info explains the necessary procedure.



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  1. Properly relieve the fuel system pressure.
  2. Disconnect the negative battery cable. Place a clean drain pan under the radiator, open the drain **** and drain the cooling system.
  3. Remove the air cleaner assembly and the fuel injector sight shield.
  4. Disconnect the cables from the throttle body and mount bracket.
  5. Remove the coolant recovery reservoir.
  6. Remove the inner fender electrical cover on the right side.
  7. Remove the right rear crossover pipe heat shield.
  8. Disconnect the fuel lines from the fuel rail and from the cable bracket.
  9. Remove the alternator and brace.
  10. Remove the throttle body cable mounting bracket with the vacuum lines and disconnect the vacuum lines.
  11. Tag and detach the electrical connections at the throttle body and both banks of fuel injectors.
  12. Disconnect the vacuum hoses from the canister purge solenoid valve and transaxle module and intake connection.
  13. Unbolt the power steering pump and move forward. DO NOT disconnect the fluid lines.
  14. Tag and disconnect the spark plug wires position lay aside.
  15. Disconnect the coolant bypass hose from the intake manifold.
  16. Remove the solenoid valve mounting bracket and power steering support brace from the intake manifold.
  17. Disconnect the heater pipes from the intake and front cover.
  18. Remove the alternator support brace from the intake.
  19. Disconnect the upper radiator hose from the housing.
  20. Remove the thermostat housing and thermostat from the intake.
  21. Detach the electrical connector from the temperature sensor and sensor switch.
  22. Unfasten the intake manifold bolts, then remove the manifold as an assembly. Remove and discard the gaskets.
  23. If separating the upper manifold from the lower, proceed as follows:
  24. Remove the fuel rail and fuel injectors.
  25. Detach the coolant sensor switch.
  26. Remove the manifold end cap cover.
  27. Remove the upper intake manifold and throttle body assembly from the lower manifold. Remove and discard the gaskets. To install:
  28. Thoroughly clean all gasket mating surfaces.
  29. If replacing the upper manifold, proceed as follows:
  30. Apply a 1⁄16 in. bead of Loctite® Instant Gasket Eliminator 51845 or equivalent to the lower manifold mating surface. Make sure to circle all bolt holes.
  31. Carefully lower the upper manifold and throttle body assembly onto the lower manifold.
  32. Tighten the upper manifold retaining bolts to 19 ft. lbs. (26 Nm).
  33. Install the manifold end cap cover and the coolant sensor switch.
  34. Install the fuel injectors and rail to the manifold assembly.
  35. Clean the mating surfaces and install the intake manifold gaskets and seals. Apply sealer to the ends of the of the intake manifold seals.
  36. Position the intake manifold and apply a suitable thread lock compound to the bolt threads. Tighten the retaining bolts to 88 inch lbs. (10 Nm), twice, in the sequence shown in the accompanying figure.
  37. Attach the electrical connector to the temperature sensor and sensor switch.
  38. Install the thermostat housing and thermostat with a new gasket.
  39. Connect the alternator support brace to the intake.
  40. Install the solenoid valve mounting bracket and power steering support brace to the intake manifold.
  41. Connect the heater pipes to the intake and front cover.
  42. Attach the coolant bypass hose to the intake manifold.
  43. Install the power steering pump support bracket and tighten to 37 ft. lbs. (50 Nm).
  44. Install the spark plug wires on both sides.
  45. Install the belt tensioner pulley and tighten to 33 ft. lbs. (45 Nm).
  46. Install the power steering pump.
  47. Connect the vacuum hoses to the canister purge solenoid valve and transaxle module and intake connection.
  48. Attach the electrical connections at the throttle body and both banks of fuel injectors.
  49. Install the alternator and brace.
  50. Connect the throttle body cable mounting bracket with the vacuum lines.
  51. Install the right rear crossover pipe heat shield.
  52. Install the cables to the throttle body.
  53. Connect the fuel lines to the fuel rail and mount bracket.
  54. Install the inner fender electrical cover on the right side.
  55. Install the coolant recovery reservoir and upper radiator hose. Fill the cooling system.
  56. Install the air cleaner assembly and the fuel injector sight shield.
  57. Connect the negative battery cable.

Jan 31, 2011 | 1993 Buick Regal

1 Answer

How to replace an intake manifold gasket on a 1996 gmc jimmy


Hello,

Here is a detailed summary on the procedure of how to replace the intake manifold gasket on a 1996 gmc jimmy;
REMOVING THE UPPER INTAKE MANIFOLD(PLENUM)
STEP 1 Disconnect Battery (may not be absolutely necessary, but a good practice to avoid shorting a positive wire to ground).


STEP 2 Remove serpentine belt.

STEP 3 Drain the coolant.

STEP 4 Remove air cleaner ducting and disconnect wires.

STEP 5 Disconnect throttle linkage and bracket.

STEP 6 Disconnect cruise control cable.

STEP 7 Remove brake booster vacuum hose at manifold.

STEP 8 Remove PCV hose.

STEP 9 Remove ignition coil and bracket.

STEP 1O Remove purge solenoid and bracket.

STEP 11 Relieve fuel pressure at test port.

STEP 12 Remove fuel lines and bracket.

STEP 13 Remove upper intake manifold.

REMOVING THE LOWER INTAKE MANIFOLD
STEP 1 Remove the distributor and label the spark plug wires.

STEP 2 Remove heater hoses and bypass hose.

STEP 3 Remove upper radiator hose.


STEP 4 Remove EGR valve?

STEP 5 Remove sensors and bracket on right side.

STEP 6 Remove EGR tube, clamp and bolt.

STEP 7 Remove PCV valve (and replace).

STEP 8 Unbolt A/C compressor and move it aside.

STEP 9 Loosen compressor bracket and slide forward, but do not remove it.

STEP 10 Remove alternator bracket bolt (or remove alternator and set aside)

STEP 11 Unplug all vacuum lines from intake manifold.


STEP 12 Unplug all electrical connectors from manifold.

STEP 13 Take note of the intake manifold bolts and mark the location of the bolts.


STEP 14 Remove intake manifold bolts, and manifold.

STEP 15 Clean mating surfaces

THE MAIN INSTALLATION
STEP1 Set the new gaskets in place and apply silicone to flat areas on front and rear of engine block.

STEP2 Apply thread locking compound to manifold bolts.

STEP 3 Install the manifold and tighten bolts to 35 ft-lbs, in proper sequence.

STEP4 Install the distributor.

STEP5 Install the upper intake manifold.



The remaining installation procedures are basically the reverse of removal.


Have a nice day.

Dec 04, 2010 | 1996 GMC Jimmy

1 Answer

How to change valve cover gasket and thermostat on 1992 ES300


the thermostat its located in water out hose near to a/c compressor, to change valve cover, front of engine remove the plastic cover with lexus logo using hex 5mm key 2 bolts , unplug 3 spark plug wires ,loose all 10mm bolts on valve cover , to rear engine valve cover remove before the manifold intake and all components , air filter duct , etc.

Aug 06, 2010 | 1992 Lexus Es 300

2 Answers

Need to replace the intake manifold


3.8L Engine (most common) Upper Intake Manifold To Remove:
  1. Drain the cooling system.
  2. Remove or disconnect the following:
    • Negative battery cable.
    • Fuel injector sight shield.
    • Air cleaner intake duct.
    • Right spark plug wires from the ignition control module and reposition.
  3. Relieve the fuel pressure.
  4. Remove or disconnect the following:
    • Fuel rail assembly.
    • Brake booster hose from the vacuum source manifold in the upper intake manifold.
    • Exhaust Gas Recirculation Valve (EGR) wiring harness heat shield nut, bolt and the EGR heat shield.
    • Throttle body support bracket upper bolt.
  5. Disconnect the electrical connectors from the following:
    • EVAP purge solenoid
    • Throttle Position (T/P) sensor
    • Idle Air Control (IAC) valve
    • Manifold Absolute Pressure (MAP) sensor
    • Mass Air Flow (MAF) sensor
    • EVAP purge solenoid vacuum line from the throttle body.
    • Accelerator and the cruise control cables with the bracket from the throttle body.
  6. Remove or disconnect the following:
    • Upper intake manifold bolts and stud.
    • Clean the upper intake manifold bolt threads.
  7. Remove or disconnect the following:
    • Upper intake manifold by lifting the back of the intake and sliding the manifold forward from the throttle body support bracket.
    • Upper-to-lower intake manifold carrier gasket from the upper intake manifold.
  8. If the upper intake manifold is being replaced, remove the following:
    • Throttle body assembly.
    • Manifold Absolute Pressure (MAP) sensor.
    • Positive Crankcase Ventilation (PCV) valve.
    • Vacuum source manifold.
Upper intake manifold bolt torque sequence (3.8L engine) gm-03-38-530.gif

To Install:
  1. If the manifold was replaced, install or connect the following:
    • Vacuum source manifold.
    • Positive Crankcase Ventilation (PCV) valve.
    • Manifold Absolute Pressure (MAP) sensor.
    • Throttle body assembly.
    • Upper-to-lower intake manifold carrier gasket to the upper intake manifold.
  2. Carefully place the upper intake manifold onto the lower intake manifold. Ensure that the alignment pins in the upper intake manifold align with the holes in the lower intake manifold. NOTE: Apply thread lock compound, to the bolt threads before assembly.
  3. Install or connect the following:
    • Upper intake manifold. Tighten the upper intake manifold bolts in sequence to 89 in lbs (10 Nm)
    • Accelerator and the cruise control cables with the bracket to the throttle body.
    • EVAP purge solenoid vacuum line to the throttle body.
  4. Connect the electrical connectors to the following:
    • Mass Air Flow (MAF) sensor
    • Manifold Absolute Pressure (MAP) sensor
    • Idle Air Control (IAC) valve
    • Throttle Position (T/P) sensor
    • EVAP purge solenoid
  5. Install or connect the following:
    • Throttle body upper support bracket bolt. Tighten the bolt to 89 in lbs (10 Nm)
    • EGR valve wiring harness heat shield, nut and the bolt. Tighten the nut and the bolt to 89 in lbs (10 Nm)
    • Brake booster hose to the vacuum source manifold.
    • Fuel rail assembly.
    • Right spark plug wires.
    • Air cleaner intake duct.
    • Fuel injector sight shield.
  6. Connect the negative battery cable.
  7. Fill the cooling system.
  8. Inspect for fluid or vacuum leaks.
Lower Intake Manifold (W/O Supercharger) To Remove:
  1. Remove or disconnect the following:
    • Upper intake manifold.
    • Generator brace.
    • Drive belt tensioner with the mounting bracket and the heater water bypass inlet pipe.
    • Exhaust gas recirculation EGR outlet pipe bolt from the lower intake manifold.
    • Radiator inlet hose from the water outlet housing.
    • ECT sensor electrical connector.
    • Right upper engine mount strut bracket.
    • Generator brace bracket bolts.
    • Generator brace bracket.
    • Lower intake manifold bolts.
    • Lower intake manifold.
    • Lower intake manifold seals.
    • Lower intake manifold gaskets.
  2. If replacing the lower intake manifold, Remove or disconnect:
    • Water outlet housing bolt and stud
    • Water outlet housing
    • Gasket and the thermostat.
    • ECT sensor.
  3. Inspect the flatness of inlet flanges.
  4. Clean the intake manifold mating surfaces.
  5. Clean the intake manifold bolts and bolt holes of adhesive compound.
To Install:
  1. If removed, install the ECT sensor.
    • Tighten the ECT sensor to 18 ft. lbs. (25 Nm)
  2. If removed, install the thermostat, the gasket, and the water outlet housing.
  3. If removed, install the water outlet housing bolt and the stud.
    • Tighten the bolt and stud to 20 ft. lbs. (27 Nm)
  4. Install or connect the following:
    • Lower intake manifold gaskets. NOTE: Apply sealer GM P/N 12346286 (Canadian P/N 10953472) or equivalent to the ends of the intake manifold seals.
    • Lower intake manifold seals.
    • Lower intake manifold.
    • Lower intake manifold bolts.
    NOTE: Apply thread lock compound GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the two hidden bolts and ensure they are installed.
  5. Tighten the lower intake manifold bolts in sequence to 11 ft. lbs. (15 Nm) gmpc_v6_5.gif

  6. Install or connect the following:
    • Generator brace bracket.
    • Generator brace bracket bolts. Tighten the bolts to 37 ft. lbs. (50 Nm)
    • Right upper engine mount strut bracket.
    • ECT sensor electrical connector.
    • Radiator inlet hose to the water outlet housing.
    • EGR outlet pipe to the lower intake manifold.
    • EGR outlet pipe bolt to the lower intake manifold. Tighten the bolt to 21 ft. lbs. (29 Nm)
    • Drive belt tensioner.
    • Generator brace.
    • Upper intake manifold.
  7. Inspect for leaks.
Lower Intake Manifold (W/ Supercharger) To Remove:
  1. Disconnect the negative battery cable.
  2. Drain the cooling system.
  3. Remove the supercharger.
  4. Remove the thermostat housing.
  5. Remove the EGR pipe at the intake manifold.
  6. Disconnect the electrical connection at the temperature sensor.
  7. Remove the intake manifold and gaskets.
NOTE: The coolant bypass tube will release from the intake manifold when the manifold is removed.
To Install:
  1. Clean the gasket sealing surfaces.
  2. Install the intake manifold gaskets.
  3. Align the coolant bypass tube with the opening in the intake manifold and install the manifold. Tighten the bolts to 11 lb ft (15 Nm).
  4. Install the electrical connector to the temperature sensor.
  5. Install the EGR pipe to the intake manifold.
  6. Install the thermostat housing.
  7. Install the supercharger.
  8. Fill the cooling system.
  9. Connect the negative battery cable.

Aug 05, 2010 | 1997 Pontiac Grand Prix

2 Answers

Can i just replace the head gaskets or do i need to replace alll gaskets


when u replace the head gaskets u must also replace any parts gasket that u remove (valve covers, intake manifold etc.) to get the heads off, they sell what is called a "Valve Grind" gasket set that is what u need, it will have all the gaskets in it u need..

May 27, 2010 | 1991 Buick Century

1 Answer

Intake manifold 1996 Blazer S10


do you mean the valve cover ? because I don't think you can have the intake manifold backward.(if it's backward, you cannot connect the upper hose and the fuel lines)
so any way, it sound like you have the valve cover swapped. it won't hurt to drive but it is a problem to fill the engine oil as you stated.

Apr 21, 2010 | 2002 Chevrolet Blazer

1 Answer

I have a 2002 cavaliry Z24. It has the 2.4 engine. It has a bad miss. The trouble code that was givrn was po302. I have replaced the spark plugs and wires. I was wondering if there is a way to test the...


P0302 is random misfire on cylinder #2.

Most comment cause is vacuum leak at the intake manifold and vacuum hose.

If you valve cover is leaking oil on then DO THE HOLD JOB.

Remove valve cover to gain access the intake manifold.

Change the intake gasket and valve cover gasket.

Dec 12, 2009 | 1996 Chevrolet Cavalier

1 Answer

What parts do I need to replace my spark plugs?


Generally, the valve cover gasket, PCV valve, vacuum lines, exhaust manifold gaskets, and injector seals. These are all things that, universally, should be inspected or replaced at large intervals (60,000 - 70,000) as a matter of preventative maintenance.

Nov 19, 2009 | 2000 Lexus RX 300

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